Google Play Services 2019 Overview for Android

Google Play Services is necessary to update Google apps and other apps from Google Play. This component provides core functionality like authentication to your Google services, synchronized contacts, access to all the latest user privacy settings, and higher quality, lower-powered location based services.

Install and Uninstall

Install Google Play Services Without Google Play or Google Account

If you prefer to install it without google play or google account follow these steps:

Download the full apk file from the previous direct link (not google play one).

Open the file.

You may be asked to activate install from unknown source from the security settings if you are not previously activated it.
To activate this, go to settings >> security settings >> activate unknown source.

Follow instructions, Install & you are done.

If you have a google account linked to your device, you can just install it from play store with simple clicks.